Komatsu ecot3 Operation And Maintenance Manual page 291

MAINTENANCE PROCEDURE
To maintain the anticorrosion properties of COOLANT, always keep the density of COOLANT between 30% and
64%.
When selecting COOLANT, investigate the lowest temperature in the past and decide the density for the COOLANT
from the COOLANT density table below. When actually deciding the density for the COOLANT, set it approximately
10°C (18°F) below lowest temperature. The density must be over 30% at least. If the density of obtained COOLANT
is higher than the necessary density for lowest temperature, dilute it with adequate distilled water, and then fill it into
the tank.
If there is any unclear point, please contact your Komatsu distributor.
Coolant density table
° C
Minimum Temp
° F
Concentration (%)
COOLANT is toxic. When open the drain valve, be careful not to get coolant on you.
If it gets in your eyes, flush your eyes with large amount of fresh water and see a doctor at once.
When changing the coolant or when handling the coolant containing COOLANT that has been drained during repair of radiator,
please contact your Komatsu distributor or request a specialist company to carry out the operation. COOLANT is toxic. Do not
let it flow into drainage ditches or spray it onto the ground surface.
COOLANT is already diluted with distilled water, so it is not flammable. (For details of the distilled water, see
"COOLANT AND WATER FOR DILUTION (PAGE 4-5)"). Check the density with a COOLANT tester.
Prepare a container whose capacity is larger than the specified coolant volume to catch drained coolant.
Prepare a hose to use when filling with coolant.
4 - 28
Above -10 -15 -20
Above 14 5 -4
30 36 41
-25 -30
-13 -22
46 50
WARNING
MAINTENANCE
-35 -40 -45
-31 -40 -49
54 58 61
-50
-58
64